Concrete sea-wall.



H. W. SCHLUETEH. CONCRETE SEA WML. APPLICATHJN FILED 11Ec,15,1915.

contienen specification of Letters .Paie-m.

Patente-tl Nov. 2l, 191th.

Application filed December 15, 1915. Serin! No. @.G'?.

To aZ whom 'it 'l1/.oy rom-cm Be it known that l, llns'nr Vv'. SCHLUETER,

a citizen of the United States, 'residing at following is a specllicetion.

lill

- tides illy. invention relate` 'to the art of protecting the ocean l'ront lgainst the destructive action of waves.

On shores which are subjected to high and heavy seas there is often a very pronounced eroding action during storms, thewaves cutting; away large portions 'of the beach and damaging surrounding property. l

To protect the shore against the action of the sea, sea walls of various kinds have been huilt7 practically all ol" them presenting a sloping surface ending in. an upwardly extending curve against which the waves break and spend their torce.

The principal object ol' my invention. is vto produce a. sca Wall having these general characteristics, but einhclying certain new forms of construction.

ln the previous forros ot' sea wall concrete or stone walls have heen huilt which were practically continuous; and some oit' whichL were oi' very considerable length, ll'herc concrete walls of 'this character have been huilt there likelihood of :Packing due to uneven settling* thereof., or duc to unequal espansioc under the action ol? the sun. The latter is especially likely to occur as vthe upper part otho wall often c2c posed to high iperatures where the hotu toni is buried wet sand.

ln my invention .l provide a sea wall which. is made up of a plurality of panels,

these panels hei. loosely tied together along` their edges and solidly tied into a continuons girder which runs along@ the top.

The principal dilllculty in building sectional sea walls has heen the liability of the sand being washed ont throughthe openings between the 'panels onder the scouring action of' the heavy seae... lt should he understood that at ltimes of heavy storms the velocity of the water, a wave breaks is very great, and in previous forties ci sectional walls 1the force of such Waves has heen sulicient to penetrate the openings between the sections, washing out the sand behind the wall and eventually causing; had cave-ins in the rear thereof. Practically all sea Walls are also retaining walls, the shore being huilt up behind them so' that there is a considerable pressure tending to force theni outI seawardly. rlhis"condition is increased by the action oi water which gets in behind the wall and exerts i. hydrostatic pressure thereon.

is allowed to escape through the opening hctwcenthe sections so that there is no danger of in'liurii'ig the wall hy this pressure.

In my invention I provide a special forni or' locking groove for tying the various sectionstogether, this groove in reality forming 4a pair of drain grooves through which it is practically impossible for the force oi' waves to penetrate with any velocity and down which the. water from the breaking waves is allowed to run without danger of cutting out the material behind the wall. The sea wall is inclined so that it acts a sort of roof turning" the `water which is projected against it. lout allowinga free interchange of pressure between the space on either side.

Further objects and advantages will he made evident hereinafter.

lu the drawinfegs which are for illustrative purposes only, Figure l is a perspective view, partly in section, ot asmall portion oi a sea wall constructed in accordance with my invention. Fig'. Q is a view of the bottom of the panels showing' the. general arrangement thereof. Fig. 3 is an enlarged section on a plane represented hy the line fc3-zr^` ot Fig. Q, this plane being viewed in the direction oi' the arrows. Fig. i is. a sectional view cna plane represented hy the line n;"*-oc4 of Fig. 3, this plane being' viewed in the direction of the arrows.

The method of construction of my wall is hcst shown in Fig'. l in whichll 'represents tho natural beach line, and l2 represents the surface of the ocean under normal conditions. lt is7 of course, understood, that iu times olf storni and high tide the level l2 is considerably raised and heavy waves lorca k against the wall structure.

The wall structure consists of'a plurality of panels 13, these panels being formed of concrete and having vertical reinforcing rods 14: embedded therein, these vertical reinforcing rods being tied together with horizontal rcinforceinents 15 as leest shown in Fig., el.

'The inner side of each panel has a cavity 16 formed therein these cavities being for the purpose of saving material and lightening the construction. The panels are all of the use of a sectional sea wall this water i eimil stinigii portion 2G which terminater.

in a Wedge shaped g'mvei groove 27. The verticai ieini'rfoi'eenen l is aiiowed to pro ject from the ends of the slab und is taie fied up and seemed to gi-'dei renfoicements fuli fofce 'and enters the primey dra-in 2l;

CIT

. of the "nii is iied with sand, gravel, rook, f or any of' Ehe oiiei: iimermis making up *me in e return.

ahora The giidei' Slis formed bend :is :shown :it 44)? so ihn?, he waves which break on the'owei portion the-roof on 'the' grooved nee of #the panels 13 thrown oook and. ouv iii-diy. The giioer 3i exeiids "'ie gallois i?) and owmvardiy im n lod oi operation of my invention is somevfiio; peeuiiar, and requires coifeui 'explmmvioa Vfith; :L sea wall ereoeoi in neooriance wh my invention ii', is pos-- Sib'ie ibo dii'ee' a, heavy stream of Water on Sie Ezio-e of wel?. Withou any of this fueispii'ring through and Washing out f" *iiaaeifial beiiiiic. This is due go Ene cuiia e-:miguiaion o' the opennge between the ,mnes. 'The force of the wai-er striking against 'iie 3? of #ne panels enters the stiaight poigtion 20 of hese grooves Withvits Do 'o the Shape of the sides of the grooves,

o'os cui-mma are v@et up in the Water, so' ,that very little oi 1i, geis by vthe primary drain 21, the force oi the wv mer being almost f wholiy expende. by iie time it reaches this drain. isfthe panels are inclined, the Water runes'iowly down in 'the piimary drain 2 withou; passing nough imo the filling maeriai behind the sea-vmi Should there be may consideibe i;eifeiiejyf for vei to gef;

.assist in this use meiebeod Q2 and when ii 2% i5@ is wiiov e?. this drain gioovo a. face of the iva coveief a, :fie

which which ae loo.

Hw heef fuliv resi wedgeshapod gzmei groove 27, *ls-groove being 'for the purpose of jgiieveiiing the es#w lcupe oonv iuzitorizi om die om of Ehe sea woiL- 'idea which re grovei 'm e im the bock carinii/1g f fue i'iiei? pa from the backing daim :is im 'nioii Se l. A i Comprising a conimous horizimta gilde?? zo wk en. are Series of' ineiiioii e, sziif loosely ti el L may ie oenfre'i portion, a, seeoii'fl Seconiaify ben Y. graveigiroove i 2. A see wvo-ii coiiipi i horzonm gzde' 'iio which. vies o? inciigied panels, said paziee" oosely e ogethes? by 33eme ef a. gue and geovl, of* et and groove :m'ming passage through tho see v wai? said iormious passage coiisisiing of e straight entering *portion 1:1 'primm'y drain" groove, a. primary wei/um bend, a, stmgn eeiitial poiiong a. sseoona'y drain ffmove7 fi secondary ifoxmii zeii, and e' Wedge shaped giave gg'ioovQ-f iwi@ prima@ and. secondary drain groove 5 lng so formed miei which is prol jeeted against hesoping #face of he paneis.

En esimonv Wieeof, I hereunto set my hand at Los A iigees, Caiizoinieg this h day of December, i915 

